Home / 17,579.15-24,270.56-15,687.49

Finding the Fourth Proportional to 17,579.15, 24,270.56 and 15,687.49

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Solution

The fourth proportional to 17,579.15, 24,270.56 and 15,687.49 is: 21,658.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,579.15 : 24,270.56 = 15,687.49 : x
  2. Step 2: Convert to fraction form
    17,579.15/24,270.56 = 15,687.49/x
  3. Step 3: Cross multiply
    17,579.15x = 24,270.56 × 15,687.49
  4. Step 4: Simplify right side
    17,579.15x = 380,744,167.29
  5. Step 5: Solve for x
    x = 380,744,167.29/17,579.15
  6. Step 6: Final answer
    x = 21,658.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.